Heat pumps
The heat pump is an universal machine which combines heater, the source of hot water supply and air conditioner in it. The main advantage of the heat pump is the ability to utilize renewable law-potential energy for heating purposes, hot water supply and cooling. That is why the heat pump provides effective heating without gas or other fossil fuels.
The heat pump works as a fridge just in the reverse order. The fridge takes the heat from food and rejects it outside. The heat pump transfers heat from the ground, ponds, ground water and ambient air to your house. The main parts of the heat pump are:
- condenser (the heat exchanger in which the heat transfer occurs from refrigerant to the premises via low- temperature radiators, fancoils, heating floor).
- throttle – serves for pressure reduction thus closing the cycle.
- evaporator - the heat exchanger in which the refrigerant gains the heat from low potential source.
- compressor – increases pressure and the boiling temperature.
Usually the heat pump has the Freon inside except for the fact that the present heat pumps manufacturing is carried out with refrigerant without chlorine.
The effective energy saving while using the heat pump is achieved due to taking two thirds of energy from the environment. Needless to say , that the heat pumps consume energy for compressor operation. However, for each consumed kilowatt of electricity one can receive up to five kilowatt of the heat.
The success of the heat pumps firstly depends on the source of low-potential heat. Secondly, it depends on the heat carrier inside the house (water or air). Depending upon the type of the heat carrier of the outlet and inlet, the heat pumps are divided into six types:
- ground-to-water
- water-to-water
- air-to-water
- water- to-air
- air–to - air
It is unprofitable to install the large scale heat pump inside the house with high heat losses, because it will work for the full capacity just for one month. This is why the amount of really cold days does not exceed 10-15 % of the heating period. Thus, quite often the heat pump capacity is chosen being equal to 70-80 % of the designed heating load. The heat pump will work all the time before the ambient temperature becomes lower than the certain level, for example 10-15 degrees below zero. From this moment, the auxiliary heat generator is launched. This heat generator may be represented by electric heater, gas boiler or gasoline boiler.
We work for you to choose the best option!